H.R. Haldeman

Harry Robbins "Bob" Haldeman (27 October 1926-12 November 1993) was White House Chief of Staff from 20 January 1969 to 30 April 1973, succeeding James R. Jones and preceding Alexander Haig. He was imprisoned for 18 months following the Watergate scandal.

Biography
Harry Robbins Haldeman was born in Los Angeles, California on 27 October 1926, and he served in the US Navy Reserve during World War II. He graduated from UCLA in 1948, and he worked for an advertising agency for 20 years; he worked with future White House Press Secretary Ronald Ziegler. In 1969, Haldeman was appointed Richard Nixon's White House Chief of Staff, and he was instructed to use the CIA to pressure the FBI into dropping their investigation of the Watergate scandal. Haldeman served 18 months in prison as a result, and he died of abdominal cancer in Santa Barbara, California in 1993.